/* roulang page: index */
:root {
    --night-900: #0d0a21;
    --night-700: #1b1538;
    --acid-300: #d9f356;
    --acid-400: #c5e83d;
    --flame-400: #ff7a2f;
    --flame-500: #f25c14;
    --paper-50: #f7f5fc;
    --surface-0: #ffffff;
    --ink-700: #232135;
    --ink-500: #5e5a72;
    --line-200: #e5e1f0;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-card: 0 1px 2px rgba(13,10,33,.04), 0 8px 24px rgba(13,10,33,.05);
    --shadow-float: 0 12px 40px rgba(13,10,33,.14);
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--paper-50);
    color: var(--ink-700);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  .c-brand-logo {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: conic-gradient(from 180deg, var(--acid-300), var(--acid-400), transparent 60%);
    position: relative;
    flex-shrink: 0;
  }
  .c-brand-logo::after {
    content: '';
    position: absolute; inset: 6px;
    border-radius: 50%;
    background: var(--night-900);
  }
  .c-brand-logo::before {
    content: '';
    position: absolute; inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, transparent 40%, var(--flame-400) 50%, transparent 55%);
    z-index: 1;
  }
  .c-brand-logo span {
    position: absolute; inset: 0;
    z-index: 2;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 800;
    color: var(--acid-300);
    letter-spacing: -0.5px;
  }

  .c-nav-active {
    position: relative;
    color: var(--acid-300) !important;
    background: rgba(255,255,255,.06);
  }
  .c-nav-active::before {
    content: '';
    position: absolute; left: 0; top: 50%;
    transform: translateY(-50%);
    width: 4px; height: 20px;
    border-radius: 0 4px 4px 0;
    background: var(--acid-300);
  }

  .c-side-link {
    display: flex; align-items: center;
    gap: 12px;
    padding: 11px 16px;
    margin: 2px 0;
    border-radius: 10px;
    color: rgba(255,255,255,.72);
    font-size: 15px;
    font-weight: 500;
    transition: all .18s ease;
    border: 1px solid transparent;
  }
  .c-side-link:hover {
    background: rgba(255,255,255,.08);
    color: #fff;
    transform: translateX(2px);
  }
  .c-side-link:focus-visible {
    outline: 2px solid var(--acid-300);
    outline-offset: -2px;
  }

  .c-btn-acid {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--acid-300);
    color: #161923;
    font-weight: 600;
    height: 46px;
    padding: 0 24px;
    border-radius: 10px;
    border: 1px solid transparent;
    transition: all .18s ease;
    font-size: 15px;
    letter-spacing: .02em;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(217,243,86,.20);
  }
  .c-btn-acid:hover {
    background: #e3fc6d;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(217,243,86,.28);
  }
  .c-btn-acid:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(217,243,86,.15); }
  .c-btn-acid:focus-visible { outline: 3px solid rgba(217,243,86,.4); outline-offset: 2px; }

  .c-btn-ghost {
    display: inline-flex; align-items: center; justify-content: center;
    background: transparent;
    color: rgba(255,255,255,.86);
    font-weight: 500;
    height: 46px;
    padding: 0 22px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.35);
    transition: all .18s ease;
    font-size: 15px;
    cursor: pointer;
  }
  .c-btn-ghost:hover {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.6);
    color: #fff;
  }
  .c-btn-ghost:focus-visible { outline: 3px solid rgba(255,255,255,.25); outline-offset: 2px; }

  .c-btn-outline-dark {
    display: inline-flex; align-items: center; justify-content: center;
    background: #fff;
    color: var(--ink-700);
    border: 1px solid var(--line-200);
    height: 40px;
    padding: 0 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: all .18s ease;
    cursor: pointer;
  }
  .c-btn-outline-dark:hover {
    border-color: var(--acid-400);
    color: #1b1538;
    box-shadow: var(--shadow-card);
    transform: translateY(-1px);
  }

  .c-card-light {
    background: var(--surface-0);
    border: 1px solid var(--line-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition: transform .2s ease, box-shadow .2s ease;
  }
  .c-card-light:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-float);
  }

  .c-badge {
    display: inline-flex; align-items: center;
    background: var(--line-200);
    color: #4b4760;
    font-size: 12px;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 999px;
    transition: all .15s;
  }
  .c-badge--flame {
    background: var(--flame-400);
    color: #1a0e08;
    font-weight: 600;
  }
  .c-badge--acid {
    background: var(--acid-300);
    color: #22252d;
    font-weight: 600;
  }

  .c-panel-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-lg);
    backdrop-filter: none;
  }

  .c-step-dot {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--night-900);
    color: var(--acid-300);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800;
    font-size: 18px;
    border: 2px solid var(--acid-300);
    box-shadow: 0 0 0 5px rgba(217,243,86,.12);
    flex-shrink: 0;
  }
  .c-step-line {
    width: 2px;
    background: linear-gradient(to bottom, var(--acid-300), var(--line-200));
    margin: 4px 0 4px 18px;
    flex-shrink: 0;
  }
  @media (min-width: 1024px) {
    .c-step-line--v {
      display: none;
    }
    .c-step-arrow {
      display: flex; align-items: center;
      color: var(--acid-300);
      font-size: 24px;
      margin: 0 10px;
    }
  }
  @media (max-width: 1023.9px) {
    .c-step-arrow { display: none; }
  }

  .c-cover-img {
    aspect-ratio: 16/10;
    width: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
  }

  .c-prose p { margin-bottom: 1.2em; }
  .c-prose h2 { font-size: 1.3rem; font-weight: 700; margin-top: 1.6em; margin-bottom: .6em; border-left: 4px solid var(--acid-400); padding-left: 14px; }
  .c-prose h3 { font-size: 1.1rem; font-weight: 700; margin-top: 1.2em; margin-bottom: .4em; }

  .c-dot-star {
    position: absolute;
    width: 3px; height: 3px;
    background: rgba(255,255,255,.7);
    border-radius: 50%;
    animation: twinkle 2.5s infinite alternate;
  }
  @keyframes twinkle {
    0% { opacity: .25; }
    100% { opacity: .85; }
  }

  .c-light-track {
    position: absolute;
    top: 0; right: 0;
    width: 420px; height: 420px;
    background: radial-gradient(circle at top right, rgba(217,243,86,.14), transparent 60%), radial-gradient(circle at 60% 20%, rgba(255,122,47,.10), transparent 50%);
    filter: blur(10px);
    pointer-events: none;
  }

  .c-faq-btn {
    transition: background .2s;
  }
  .c-faq-btn:hover { background: rgba(255,255,255,.08); }

  details.c-faq details[open] .c-faq-icon { transform: rotate(45deg); }
  .c-faq-icon { transition: transform .25s ease; }

  .c-chart-card {
    background: #fff;
    border: 1px solid var(--line-200);
    border-radius: var(--radius-md);
  }

  /* 移动端底部工具栏 */
  .c-mobile-bar {
    display: none;
  }
  @media (max-width: 767px) {
    .c-mobile-bar {
      display: flex;
      position: fixed;
      bottom: 0; left: 0; right: 0;
      z-index: 50;
      background: rgba(13,10,33,.92);
      backdrop-filter: blur(6px);
      border-top: 1px solid rgba(255,255,255,.1);
      padding: 10px 20px;
      align-items: center;
      justify-content: space-between;
    }
    body { padding-bottom: 64px; }
  }

  .c-mobile-nav {
    transform: translateX(-105%);
    transition: transform .28s ease;
  }
  .c-mobile-nav.open {
    transform: translateX(0);
  }

  .c-faq-block summary::-webkit-details-marker { display: none; }
  .c-faq-block summary { list-style: none; }
  .c-faq-block summary::-webkit-details-marker { display: none; }

  .c-analytics-bg {
    background-image: linear-gradient(rgba(13,10,33,.78), rgba(13,10,33,.65)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }

  .c-dashboard-item {
    transition: all .2s ease;
  }
  .c-dashboard-item:hover {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.25);
  }

  .c-nav-drawer-item {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    font-size: 18px;
    color: rgba(255,255,255,.82);
    transition: background .15s;
    border-left: 3px solid transparent;
  }
  .c-nav-drawer-item:hover { background: rgba(255,255,255,.06); color: #fff; }
  .c-nav-drawer-item.active { border-left-color: var(--acid-300); color: var(--acid-300); background: rgba(255,255,255,.05); }

  .c-live-link {
    color: var(--ink-500);
    font-size: 14px;
    transition: color .15s;
  }
  .c-live-link:hover { color: var(--ink-700); }

  .c-footer-link {
    color: rgba(255,255,255,.6);
    font-size: 14px;
    transition: color .15s;
    line-height: 1.8;
  }
  .c-footer-link:hover { color: var(--acid-300); }

  .c-help-list li {
    padding-left: 22px;
    position: relative;
    line-height: 1.8;
    color: var(--ink-500);
    font-size: 14px;
  }
  .c-help-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 12px;
    width: 8px; height: 8px;
    background: var(--acid-300);
    border-radius: 2px;
    transform: rotate(45deg);
  }
  .c-fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp .6s ease forwards;
  }
  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
  .c-delay-1 { animation-delay: .1s; }
  .c-delay-2 { animation-delay: .2s; }
  .c-delay-3 { animation-delay: .3s; }

  .c-stat-num {
    color: var(--night-900);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.2;
  }

/* roulang page: article */
:root {
            --night-900: #0d0a21;
            --night-700: #1b1538;
            --acid-300: #d9f356;
            --flame-400: #ff7a2f;
            --paper-50: #f7f5fc;
            --surface-0: #ffffff;
            --ink-700: #232135;
            --ink-500: #5e5a72;
            --line-200: #e5e1f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-card: 0 1px 2px rgba(13,10,33,.04), 0 8px 24px rgba(13,10,33,.05);
            --shadow-float: 0 12px 40px rgba(13,10,33,.14);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--paper-50);
            color: var(--ink-700);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img,
        svg {
            display: block;
            max-width: 100%;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        button,
        input,
        textarea {
            font: inherit;
            border: 0;
            outline: none;
        }

        .c-text-balance {
            text-wrap: balance;
        }

        .c-sidebar {
            position: fixed;
            inset: 0 auto 0 0;
            width: 240px;
            background: var(--night-900);
            display: flex;
            flex-direction: column;
            z-index: 50;
            overflow-y: auto;
        }

        .c-main-wrapper {
            min-height: 100vh;
        }

        .c-side-link {
            display: flex;
            align-items: center;
            gap: .65rem;
            padding: .68rem 1rem;
            margin: .2rem 0;
            border-radius: 10px;
            color: rgba(255,255,255,.62);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            transition: all .24s ease;
            border-left: 3px solid transparent;
        }

        .c-side-link i {
            color: rgba(255,255,255,.4);
            transition: color .24s ease;
        }

        .c-side-link:hover {
            background: rgba(255,255,255,.08);
            color: #fff;
            transform: translateX(2px);
        }

        .c-side-link:hover i {
            color: var(--acid-300);
        }

        .c-nav-active,
        .c-side-link.c-nav-active {
            background: rgba(217,243,86,.08);
            color: var(--acid-300);
            border-left-color: var(--acid-300);
        }

        .c-nav-active i,
        .c-side-link.c-nav-active i {
            color: var(--acid-300);
        }

        .c-brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(217,243,86,.1);
            border: 1px solid rgba(217,243,86,.3);
            color: var(--acid-300);
            font-size: 18px;
            flex: 0 0 auto;
        }

        .c-btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: var(--acid-300);
            color: #0d0a21;
            font-size: 14px;
            font-weight: 700;
            height: 44px;
            padding: 0 22px;
            border-radius: 9px;
            border: 1px solid transparent;
            box-shadow: 0 6px 18px rgba(217,243,86,.15);
            transition: all .25s ease;
        }

        .c-btn-primary:hover {
            background: #e5ff68;
            transform: translateY(-1px);
            box-shadow: 0 10px 28px rgba(217,243,86,.28);
            color: #0d0a21;
        }

        .c-btn-primary:active {
            transform: translateY(0);
            background: #cce63f;
        }

        .c-btn-primary:focus-visible,
        .c-btn-ghost:focus-visible,
        .c-btn-orange:focus-visible {
            outline: 3px solid rgba(217,243,86,.4);
            outline-offset: 2px;
        }

        .c-btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            height: 44px;
            padding: 0 22px;
            border-radius: 9px;
            background: transparent;
            border: 1px solid rgba(255,255,255,.24);
            color: rgba(255,255,255,.8);
            font-size: 14px;
            font-weight: 600;
            transition: all .25s ease;
        }

        .c-btn-ghost:hover {
            border-color: rgba(255,255,255,.55);
            background: rgba(255,255,255,.07);
            color: #fff;
        }

        .c-btn-orange {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: var(--flame-400);
            color: #1a0e08;
            font-weight: 700;
            font-size: 14px;
            height: 44px;
            padding: 0 24px;
            border-radius: 9px;
            transition: all .25s ease;
            border: 1px solid transparent;
        }

        .c-btn-orange:hover {
            background: #ff913e;
            transform: translateY(-1px);
            color: #1a0e08;
            box-shadow: 0 8px 20px rgba(255,122,47,.22);
        }

        .c-card-white {
            background: var(--surface-0);
            border: 1px solid var(--line-200);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }

        .c-badge {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            font-size: 12px;
            font-weight: 500;
            background: #f0edf7;
            color: #3f3a58;
            border: 1px solid var(--line-200);
            padding: .3rem .8rem;
            border-radius: 999px;
            white-space: nowrap;
            transition: all .2s ease;
        }

        .c-footer-link {
            display: inline-block;
            color: rgba(255,255,255,.46);
            font-size: 14px;
            line-height: 1.8;
            transition: color .2s ease, transform .2s ease;
        }

        .c-footer-link:hover {
            color: var(--acid-300);
            transform: translateX(2px);
        }

        .c-article-breadcrumb {
            font-size: 13px;
            color: var(--ink-500);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .45rem;
        }

        .c-article-breadcrumb a:hover {
            color: #0d0a21;
        }

        .c-article-card {
            background: var(--surface-0);
            border: 1px solid var(--line-200);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .cms-read-content {
            font-size: 17px;
            color: var(--ink-700);
            line-height: 1.9;
        }

        .cms-read-content > p {
            margin: 1.5em 0;
        }

        .cms-read-content h1,
        .cms-read-content h2,
        .cms-read-content h3,
        .cms-read-content h4 {
            color: #1b1538;
            font-weight: 800;
            line-height: 1.35;
            margin: 1.8em 0 .7em;
        }

        .cms-read-content h2 {
            font-size: 1.4rem;
            border-left: 4px solid var(--acid-300);
            padding-left: .7rem;
        }

        .cms-read-content h3 {
            font-size: 1.18rem;
        }

        .cms-read-content a {
            color: #ff7a2f;
            font-weight: 600;
            border-bottom: 1px solid rgba(255,122,47,.3);
        }

        .cms-read-content a:hover {
            border-bottom-color: #ff7a2f;
        }

        .cms-read-content ul,
        .cms-read-content ol {
            padding-left: 1.4rem;
            margin: 1.2em 0;
            display: grid;
            gap: .45em;
        }

        .cms-read-content li::marker {
            color: #0d0a21;
        }

        .cms-read-content blockquote {
            margin: 1.5em 0;
            padding: 1rem 1.2rem;
            border-left: 4px solid var(--flame-400);
            background: #faf8fe;
            border-radius: 0 10px 10px 0;
            color: var(--ink-500);
        }

        .cms-read-content img {
            border-radius: 12px;
            border: 1px solid var(--line-200);
            margin: 1.6rem auto;
        }

        .cms-read-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4rem 0;
            font-size: 15px;
        }

        .cms-read-content th,
        .cms-read-content td {
            border: 1px solid var(--line-200);
            padding: .6rem .8rem;
            text-align: left;
        }

        .cms-read-content th {
            background: #f7f5fc;
            font-weight: 700;
        }

        .c-article-intro {
            border-left: 3px solid var(--acid-300);
            background: #fafafd;
            border-radius: 10px;
            padding: 1rem 1.2rem;
            color: var(--ink-500);
            font-size: 15px;
            line-height: 1.8;
            margin: 1rem 0 1.5rem;
        }

        .c-recommend-link-card {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: #fff;
            border: 1px solid var(--line-200);
            border-radius: 12px;
            padding: 1.2rem;
            transition: all .25s ease;
            height: 100%;
        }

        .c-recommend-link-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
            border-color: rgba(13,10,33,.16);
        }

        .c-recommend-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(217,243,86,.12);
            color: #0d0a21;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex: 0 0 auto;
        }

        .c-mobile-header {
            display: none;
        }

        .c-empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 72px 24px;
            background: #fff;
            border: 1px dashed #d7d0e6;
            border-radius: 18px;
            min-height: 320px;
        }

        .c-drawer {
            position: fixed;
            inset: 0 auto 0 0;
            width: min(320px, 86vw);
            background: var(--night-900);
            z-index: 100;
            transform: translateX(-104%);
            transition: transform .3s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
        }

        .c-drawer.open {
            transform: translateX(0);
        }

        .c-mask {
            position: fixed;
            inset: 0;
            background: rgba(13,10,21,.58);
            z-index: 95;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }

        .c-mask.open {
            opacity: 1;
            visibility: visible;
        }

        @media (max-width: 1023.5px) {
            .c-sidebar {
                display: none !important;
            }
            .c-mobile-header {
                position: sticky;
                top: 0;
                z-index: 80;
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 60px;
                padding: 0 20px;
                background: var(--night-900);
                color: white;
            }
            .c-main-wrapper {
                padding-top: 0;
            }
        }

        @media (max-width: 640px) {
            .cms-read-content {
                font-size: 16px;
            }
            .c-article-breadcrumb {
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
      --night-900: #0d0a21;
      --night-700: #1b1538;
      --acid-300: #d9f356;
      --flame-400: #ff7a2f;
      --paper-50: #f7f5fc;
      --surface-0: #ffffff;
      --ink-700: #232135;
      --ink-500: #5e5a72;
      --line-200: #e5e1f0;
      --radius-lg: 12px;
      --radius-xl: 16px;
      --shadow-card: 0 1px 2px rgba(13, 10, 33, .04), 0 8px 24px rgba(13, 10, 33, .05);
      --shadow-float: 0 12px 40px rgba(13, 10, 33, .14);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background: var(--paper-50);
      color: var(--ink-700);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    * {
      box-sizing: border-box;
    }

    a,
    button {
      transition: all .25s ease;
    }

    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(217, 243, 86, .55);
      outline-offset: 2px;
    }

    img {
      max-width: 100%;
      object-fit: cover;
      display: block;
    }

    /* 侧边栏 */
    .c-sidebar {
      width: 240px;
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      z-index: 50;
      background: var(--night-900);
      display: flex;
      flex-direction: column;
      border-right: 1px solid rgba(255, 255, 255, .06);
    }

    .c-brand-logo {
      width: 32px;
      height: 32px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--acid-300);
      color: #1a1c07;
      font-size: 15px;
      font-weight: 800;
      box-shadow: 0 0 0 4px rgba(217, 243, 86, .12);
    }

    .c-side-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 14px;
      margin: 3px 0;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(255, 255, 255, .64);
      text-decoration: none;
      position: relative;
    }

    .c-side-link i {
      width: 20px;
      text-align: center;
      font-size: 14px;
      color: rgba(255, 255, 255, .45);
    }

    .c-side-link:hover {
      background: rgba(255, 255, 255, .08);
      color: #fff;
    }

    .c-side-link:hover i {
      color: var(--acid-300);
    }

    .c-nav-active {
      color: var(--acid-300) !important;
      background: rgba(217, 243, 86, .08);
      font-weight: 600;
    }

    .c-nav-active::before {
      content: "";
      position: absolute;
      left: -12px;
      top: 16%;
      height: 68%;
      width: 4px;
      border-radius: 999px;
      background: var(--acid-300);
    }

    .c-nav-active i {
      color: var(--acid-300) !important;
    }

    .c-side-cta {
      display: block;
      background: var(--acid-300);
      color: #1a1c07;
      font-weight: 700;
      text-align: center;
      padding: 12px 16px;
      border-radius: 10px;
      text-decoration: none;
      font-size: 15px;
    }

    .c-side-cta:hover {
      background: #e5fc70;
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(217, 243, 86, .18);
    }

    /* 移动端导航 */
    .c-mobile-top {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      z-index: 60;
      background: var(--night-900);
      border-bottom: 1px solid rgba(255, 255, 255, .07);
    }

    .c-mobil-menu-btn {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: rgba(255, 255, 255, .05);
      color: #fff;
      border: 0;
      font-size: 20px;
    }

    .c-mobile-overlay {
      position: fixed;
      inset: 0;
      z-index: 80;
      background: rgba(4, 2, 15, .62);
      backdrop-filter: blur(2px);
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s;
    }

    .c-mobile-overlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }

    .c-mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 300px;
      max-width: 86vw;
      z-index: 100;
      background: var(--night-900);
      display: flex;
      flex-direction: column;
      transform: translateX(-105%);
      transition: transform .32s cubic-bezier(.22, .61, .36, 1);
      border-right: 1px solid rgba(255, 255, 255, .06);
    }

    .c-mobile-drawer.is-open {
      transform: translateX(0);
      box-shadow: 32px 0 80px rgba(0, 0, 0, .36);
    }

    .c-mobile-drawer .c-side-link {
      font-size: 16px;
      padding-top: 14px;
      padding-bottom: 14px;
    }

    /* 页面公共 */
    .c-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .08em;
      text-transform: uppercase;
    }

    .btn-acid,
    .btn-light,
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border-radius: 10px;
      font-weight: 700;
      text-decoration: none;
      font-size: 15px;
      height: 48px;
      padding: 0 24px;
      border: 0;
      cursor: pointer;
    }

    .btn-acid {
      background: var(--acid-300);
      color: #1c1d08;
      box-shadow: 0 8px 28px rgba(217, 243, 86, .12);
    }

    .btn-acid:hover {
      background: #e7fb79;
      transform: translateY(-2px);
      box-shadow: 0 14px 40px rgba(217, 243, 86, .2);
    }

    .btn-acid:active {
      transform: translateY(0);
      background: #c8e449;
    }

    .btn-outline {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, .35);
      color: #fff;
    }

    .btn-outline:hover {
      border-color: var(--acid-300);
      color: var(--acid-300);
      background: rgba(217, 243, 86, .08);
    }

    .btn-outline.light-mode {
      border-color: rgba(35, 33, 53, .28);
      color: var(--ink-700);
    }

    .btn-outline.light-mode:hover {
      border-color: var(--flame-400);
      color: var(--flame-400);
      background: rgba(255, 122, 47, .08);
    }

    .c-badge {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 6px 12px;
      font-size: 13px;
      background: #f0ecf9;
      border: 1px solid var(--line-200);
      color: var(--ink-500);
    }

    .hover-up {
      transition: transform .25s ease, box-shadow .25s ease;
    }

    .hover-up:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-float);
    }

    .c-hero-panel {
      background: rgba(255, 255, 255, .055);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 18px;
      backdrop-filter: none;
      padding: 18px;
    }

    .c-hero-item {
      display: flex;
      gap: 14px;
      padding: 14px 8px;
      border-bottom: 1px solid rgba(255, 255, 255, .09);
    }

    .c-hero-item:last-child {
      border-bottom: 0;
    }

    .c-step-num {
      color: var(--acid-300);
      font-weight: 800;
      font-size: 22px;
      line-height: 1;
    }

    .c-arrow-mobile {
      transform: rotate(90deg);
    }

    .c-card {
      background: var(--surface-0);
      border: 1px solid var(--line-200);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
    }

    .c-data-num {
      font-size: 2rem;
      font-weight: 800;
      color: var(--flame-400);
    }

    .c-table-header {
      font-weight: 700;
      padding: 10px 12px;
      color: var(--ink-700);
      font-size: 14px;
    }

    .c-table-row {
      background: #fff;
      border-top: 1px solid var(--line-200);
      color: var(--ink-500);
      font-size: 14px;
    }

    .c-table-row td {
      padding: 12px 14px;
    }

    .c-service-tag-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    details.faq-item {
      background: #fff;
      border: 1px solid var(--line-200);
      border-radius: 12px;
      box-shadow: var(--shadow-card);
      margin-bottom: 12px;
      overflow: hidden;
    }

    details.faq-item summary {
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      font-weight: 600;
      background: #fff;
      color: var(--ink-700);
      font-size: 15px;
    }

    details.faq-item summary::-webkit-details-marker {
      display: none;
    }

    details.faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 13px;
      color: var(--ink-500);
      transform: rotate(0);
      transition: transform .25s;
      margin-top: 4px;
    }

    details.faq-item[open] summary::after {
      transform: rotate(180deg);
      color: var(--flame-400);
    }

    details.faq-item .faq-answer {
      padding: 0 20px 18px;
      font-size: 14px;
      line-height: 1.85;
      color: var(--ink-500);
      background: #fff;
    }

    /* 页脚 */
    .c-footer-link {
      color: rgba(255, 255, 255, .48);
      font-size: 14px;
      text-decoration: none;
      line-height: 2.2;
      transition: all .2s;
    }

    .c-footer-link:hover {
      color: var(--acid-300);
      padding-left: 3px;
    }

    @media (max-width: 1023px) {
      .c-sidebar {
        display: none;
      }
      .c-page-main {
        padding-left: 0;
      }
    }
    @media (min-width: 1024px) {
      .c-page-main {
        padding-left: 240px;
      }
      .c-mobile-top {
        display: none;
      }
    }
    @media (max-width: 1023px) {
      .c-hero-section {
        padding-top: 88px !important;
      }
    }

/* roulang page: category2 */
:root {
            --night-900: #0d0a21;
            --night-700: #1b1538;
            --acid-300: #d9f356;
            --flame-400: #ff7a2f;
            --paper-50: #f7f5fc;
            --surface-0: #ffffff;
            --ink-700: #232135;
            --ink-500: #5e5a72;
            --line-200: #e5e1f0;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--paper-50);
            color: var(--ink-700);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        button,
        input,
        summary {
            font-family: inherit;
        }

        :focus-visible {
            outline: 3px solid rgba(217, 243, 86, .55);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .c-brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--acid-300), var(--flame-400));
            color: #141024;
            font-size: 17px;
            font-weight: 900;
            box-shadow: 0 0 0 1px rgba(255, 255, 255, .12), 0 6px 18px rgba(0, 0, 0, .28);
            flex: none;
        }

        .c-side-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: 10px;
            color: rgba(255, 255, 255, .66);
            font-size: 15px;
            line-height: 1.3;
            position: relative;
            transition: background .22s ease, color .22s ease;
        }

        .c-side-link:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }

        .c-side-link.c-nav-active {
            background: rgba(217, 243, 86, .13);
            color: var(--acid-300);
            font-weight: 600;
        }

        .c-side-link.c-nav-active::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 26px;
            border-radius: 999px;
            background: var(--acid-300);
        }

        .c-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 12px 16px;
            border-radius: 10px;
            background: var(--acid-300);
            color: #141024;
            font-weight: 700;
            font-size: 14px;
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .c-side-cta:hover {
            background: #e5fb6a;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(217, 243, 86, .18);
        }

        .c-btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 10px;
            background: var(--acid-300);
            color: #141024;
            font-weight: 700;
            font-size: 14px;
            line-height: 1.2;
            border: 0;
            cursor: pointer;
            transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
        }

        .c-btn-main:hover {
            background: #e5fb6a;
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(13, 10, 33, .12);
        }

        .c-btn-main:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .c-btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 10px;
            border: 1px solid rgba(35, 33, 53, .25);
            color: var(--ink-700);
            font-weight: 600;
            font-size: 14px;
            background: transparent;
            cursor: pointer;
            transition: border .2s ease, background .2s ease, transform .2s ease;
        }

        .c-btn-ghost:hover {
            background: rgba(13, 10, 33, .05);
            border-color: rgba(35, 33, 53, .4);
            transform: translateY(-1px);
        }

        .c-btn-ghost-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .18);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            background: rgba(255, 255, 255, .03);
            transition: background .2s ease, border .2s ease, transform .2s ease;
        }

        .c-btn-ghost-dark:hover {
            background: rgba(255, 255, 255, .09);
            border-color: rgba(255, 255, 255, .3);
            transform: translateY(-1px);
        }

        .c-card {
            background: #fff;
            border: 1px solid var(--line-200);
            border-radius: 16px;
            box-shadow: 0 1px 2px rgba(13, 10, 33, .04), 0 8px 24px rgba(13, 10, 33, .05);
        }

        .c-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 999px;
            background: var(--line-200);
            border: 1px solid var(--line-200);
            color: #5e5a72;
            font-size: 12px;
            font-weight: 500;
            line-height: 1;
            padding: 7px 11px;
            transition: background .2s ease, border .2s ease, color .2s ease;
        }

        .c-tag:hover {
            border-color: rgba(217, 243, 86, .9);
            background: rgba(217, 243, 86, .16);
            color: var(--ink-700);
        }

        .c-tag-dark {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .14);
            background: rgba(255, 255, 255, .07);
            color: rgba(255, 255, 255, .72);
            font-size: 12px;
            font-weight: 500;
            padding: 6px 11px;
        }

        .c-timeline {
            position: relative;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .c-timeline li {
            position: relative;
            padding-left: 38px;
            margin-bottom: 20px;
        }

        .c-timeline li::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 26px;
            bottom: -20px;
            width: 1px;
            background: var(--line-200);
        }

        .c-timeline li:last-child::before {
            display: none;
        }

        .c-number-dot {
            position: absolute;
            left: 0;
            top: 4px;
            width: 26px;
            height: 26px;
            border-radius: 999px;
            background: var(--acid-300);
            color: #141024;
            font-size: 13px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 4px rgba(217, 243, 86, .15);
        }

        .c-toc {
            position: sticky;
            top: 88px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .c-toc a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 10px;
            font-size: 13px;
            color: var(--ink-500);
            border: 1px solid transparent;
            transition: background .2s ease, color .2s ease, border .2s ease;
        }

        .c-toc a:hover {
            color: var(--ink-700);
            background: #fff;
            border-color: var(--line-200);
        }

        .c-toc a span {
            font-size: 11px;
            font-weight: 800;
            color: var(--flame-400);
            line-height: 1.9;
            letter-spacing: .04em;
        }

        .c-faq-item {
            background: #fff;
            border: 1px solid var(--line-200);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .2s ease, border .2s ease;
        }

        .c-faq-item:hover {
            box-shadow: 0 10px 26px rgba(13, 10, 33, .07);
        }

        .c-faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-weight: 600;
            color: var(--ink-700);
            font-size: 15px;
            line-height: 1.6;
            transition: background .2s ease;
        }

        .c-faq-item summary::-webkit-details-marker {
            display: none;
        }

        .c-faq-item summary .fa-chevron-down {
            color: var(--ink-500);
            font-size: 13px;
            transition: transform .3s ease, color .3s ease;
            flex: none;
        }

        .c-faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--flame-400);
        }

        .c-faq-answer {
            padding: 0 20px 20px;
            color: var(--ink-500);
            font-size: 14px;
            line-height: 1.85;
            border-top: 1px solid rgba(229, 225, 240, .8);
            padding-top: 16px;
        }

        .c-footer-link {
            position: relative;
            display: inline-block;
            color: rgba(255, 255, 255, .5);
            font-size: 14px;
            line-height: 1.7;
            transition: color .2s ease;
        }

        .c-footer-link:hover {
            color: var(--acid-300);
        }

        #mobileDrawer {
            display: none;
        }

        #mobileDrawer.open {
            display: block;
        }

        #mobileOverlay {
            opacity: 0;
            pointer-events: none;
            transition: opacity .28s ease;
        }

        #mobileDrawer.open #mobileOverlay {
            opacity: 1;
            pointer-events: auto;
        }

        #mobilePanel {
            transform: translateX(-100%);
            transition: transform .3s ease;
            visibility: hidden;
        }

        #mobileDrawer.open #mobilePanel {
            transform: translateX(0);
            visibility: visible;
        }

        @media (max-width: 639px) {
            body {
                font-size: 14px;
            }
        }